Dr Dmitry Efimkin was a Scientific Associate Investigator at Monash University specialising in novel materials such as Dirac materials, graphene and topological insulators, and optical phenomena in solids.Within FLEET, Dmitry works with CIs Michael Fuhrer, Meera Parish, and Nikhil Medhekar in Research theme 2: exciton superfluidsand Enabling technology A: atomically-thin materials, studying optical and collective phenomena in novel 2D materials, and correlations and transport in bilayer systems, including electron-hole condensation and the Coulomb drag effect. He is also interested in the condensation and dipolar superfluidity of spatially separated electrons and holes.